CN202505895U - High-resistance push rod vesicle indicating injector for epidural space puncturing - Google Patents
High-resistance push rod vesicle indicating injector for epidural space puncturing Download PDFInfo
- Publication number
- CN202505895U CN202505895U CN2012200898482U CN201220089848U CN202505895U CN 202505895 U CN202505895 U CN 202505895U CN 2012200898482 U CN2012200898482 U CN 2012200898482U CN 201220089848 U CN201220089848 U CN 201220089848U CN 202505895 U CN202505895 U CN 202505895U
- Authority
- CN
- China
- Prior art keywords
- push rod
- vesicle
- syringe
- syringe needle
- drag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 230000005587 bubbling Effects 0.000 claims description 14
- 206010002091 Anaesthesia Diseases 0.000 abstract description 2
- 230000037005 anaesthesia Effects 0.000 abstract description 2
- 210000000278 spinal cord Anatomy 0.000 abstract description 2
- 210000001032 spinal nerve Anatomy 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 6
- 210000003813 thumb Anatomy 0.000 description 4
- 210000001951 dura mater Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007920 subcutaneous administration Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a high-resistance push rod vesicle indicating injector for epidural space puncturing. The high-resistance push rod vesicle indicating injector aims at solving the problem that spinal cord or nerve can be damaged easily during puncturing of spine epidural and comprises an injector body, a syringe needle and a push rod, wherein a branch pipe is arranged on the device body or on a nozzle of the injector body or on the root portion of the syringe needle, a sealing vesicle is arranged on the branch pipe, or a through hole is arranged on the injector body or on the nozzle of injector body or on the root portion of the syringe needle, and an elastic sleeve film is sealed on the through hole. When the push rod is pushed forwards, the elastic sleeve film has a bubble, and (P1-P0)*S <= Fmax, wherein P1 is the pressure of fluid in the sealing vesicle or the bubble of the elastic sleeve film, P0 is the atmospheric pressure, S is the area of the projection of the sealing surface of the push rod on the cross section of the push rod, and Fmax is the maximum static friction force between the push rod and the inner wall of the injector body. The high-resistance push rod vesicle indicating injector is simple in structure, easy to produce, and widely applicable to operation anesthesia and clinical examination treatment of various medical organizations.
Description
Technical field
This utility model relates to a kind of epidural puncture with high-drag push rod vesicle indication syringe.
Background technology
Modern medical service needs earlier the vertebra dura mater to be punctured when the patient is carried out part or general anesthesia, makes syringe needle get into the vertebra epidural space.Sting shallowly, can't penetrate the vertebra dura mater, can't normally anaesthetize; Sting dark, easily Spinal Cord or nerve again.Operator's sensation and experience depended in the puncture success or not fully.
On JIUYUE 10th, 2003; Publication number is that the Chinese utility model patent of CN2571331Y discloses " a kind of cavum epidural puncture is with vesicle indication pressurize syringe "; This device comprises body (being syringe); The bottom is provided with communicating pipe before this body, and communicating pipe is connected with vesicle outward, and the body rearward end is provided with push rod locating groove device.
Aforementioned patent at first is connected puncture needle on the body when work, sucks liquid or gas, takes off the vesicle lid; It is subcutaneous then the puncture needle syringe needle to be thrust human body; The pushing syringe push rod is heaved vesicle again.Before continuing inserting needle, because both hands will leave the push rod afterbody, the pressure in the vesicle can promote push rod backward, and vesicle is suppressed automatically.In order to keep vesicle to fill state, designed draw-in groove push rod has been fixed, make vesicle pressure not promote push rod backward, vesicle can keep heaving state when both hands leave.Hand-held at last body slowly advances puncture needle, and when vesicle became flat suddenly, expression puncture needle syringe needle successfully thrust the epidural space of low pressure.This device has replaced people's feel, changes and shows with the automatic continuous monitoring pressure of vesicle and puncture successfully, and puncture success rate improves, and the convenience of use also has raising.
But its push rod positioner complicated operation uses inconvenience, and can cause the operator to grip shakiness, influences operating accuracy.
The utility model content
This utility model will solve the above-mentioned defective of prior art, and the cavum epidural puncture that a kind of safe ready more is provided is with high-drag push rod vesicle indication syringe.
This cavum epidural puncture comprises body, syringe needle and push rod with high-drag push rod vesicle indication syringe; It is characterized in that: on the said body or on the body mouth or the syringe needle root be provided with an arm, this arm is provided with a sealing vesicle, pushes away before the push rod; The sealing vesicle expands, and following relation is arranged: (P
1-P
0) * S≤Fmax, wherein P
1Be sealing vesicle inner fluid pressure; P
0Be atmospheric pressure; S is the projected area of push rod seal face on the push rod cross section; Fmax is the maximum static friction force between push rod and the body inwall.
Above-mentioned relation is embodied in: after pushing away, seal the vesicle expansion before the push rod, unclamp push rod, push rod stands fast.Vesicle is processed with elasticity or flexible material, and is waterproof, airtight.
As optimization, said arm is arranged on the body leading portion sidewall, and communicates with device cavity.
As optimization, said arm is arranged on the body mouth sidewall, and communicates with device cavity.
As optimization, said arm is arranged on the syringe needle root sidewall, and communicates with the syringe needle inner chamber.
The another kind of design of this utility model: this epidural puncture comprises body, syringe needle and push rod with high-drag push rod vesicle indication syringe; It is characterized in that: have through hole on the said body or on the body mouth or on the syringe needle root; And the flexible mantle of envelope on this through hole; Push away before the push rod, elasticity mantle bubbling, and following relation is arranged: (P
1-P
0) * S≤Fmax, wherein P
1Be elasticity mantle bubbling inner fluid pressure; P
0Be atmospheric pressure; S is the projected area of push rod seal face on the push rod cross section; Fmax is the maximum static friction force between push rod and the body inwall.The above-mentioned relation concrete manifestation also is: after pushing away, seal the vesicle expansion before the push rod, unclamp push rod, push rod stands fast.
As optimization, said through hole is arranged on the body leading portion sidewall, and communicates with device cavity.
As optimization, said through hole is arranged on the body mouth sidewall, and communicates with device cavity.
As optimization, said through hole is arranged on the syringe needle root sidewall, and communicates with the syringe needle inner chamber.
This utility model epidural puncture with high-drag push rod vesicle indication syringe have puncture success rate height, high safety, cost low, simple to operate, be beneficial to new hand and use and make things convenient for the advantage of imparting knowledge to students; Even the new life of medical college also can skillfully accomplish vertebra dura mater puncture procedure, can be adaptable across the surgery anesthesia and the Clinical Laboratory treatment of various medical institutions.
Description of drawings
Below in conjunction with accompanying drawing this epidural puncture is described further with high-drag push rod vesicle indication syringe:
Fig. 1 is the part section structural representation of this epidural puncture with high-drag push rod vesicle indication syringe embodiment one;
Fig. 2 is the part section structural representation of this epidural puncture with high-drag push rod vesicle indication syringe embodiment two;
Fig. 3 is the part section structural representation of this epidural puncture with high-drag push rod vesicle indication syringe embodiment three;
Fig. 4 is that this epidural puncture is with the preceding part section structural representation of high-drag push rod vesicle indication syringe embodiment four bubblings;
Fig. 5 is this epidural puncture with part section structural representation behind high-drag push rod vesicle indication syringe embodiment four bubblings;
Fig. 6 is that this epidural puncture is with the preceding part section structural representation of high-drag push rod vesicle indication syringe embodiment five bubblings;
Fig. 7 is this epidural puncture with part section structural representation behind high-drag push rod vesicle indication syringe embodiment five bubblings;
Fig. 8 is that this epidural puncture is with the preceding part section structural representation of high-drag push rod vesicle indication syringe embodiment six bubblings;
Fig. 9 is this epidural puncture with part section structural representation behind high-drag push rod vesicle indication syringe embodiment six bubblings
1 is body, and 2 is syringe needle, and 3 is push rod, and 4 is side pipe, and 5 are the sealing vesicle, 6 body mouths, and 7 is through hole, and 8 is the elasticity mantle, and 9 are the sealing plug, and 10 is the garter spring at elasticity mantle two ends.
The specific embodiment
Embodiment one: as shown in Figure 1, this epidural puncture comprises body 1, syringe needle 2 and push rod 3 with high-drag push rod vesicle indication syringe, and said body 1 leading portion sidewall is provided with a side pipe 4; This side pipe 4 is provided with a sealing vesicle 5; Push away before the push rod 3, sealing vesicle 5 expands, and following relation is arranged: (P
1-P
0) * S≤Fmax, wherein P
1Be sealing vesicle 5 inner fluid pressure; P
0Be atmospheric pressure; S is the projected areas of push rod 3 sealing surfaces on push rod 3 cross sections; Fmax is the maximum static friction force between push rod 3 and body 1 inwall.
At first spur push rod 3 during use, medicine or liquid are sucked body 1; Syringe needle 2 thrusts subcutaneous; Grip body 1 inserting needle, arrive near the compact tissue of spinal column; Thumb promotes push rod 3 then, and sealing vesicle 5 is heaved to suitable size (about 1～2 centimeter of diameter); Thumb leaves push rod 3 tail ends, grips body 1 slow inserting needle once more, and the stiction between push rod 3 and body 1 inwall keeps push rod 3 to stand fast at this moment, and vesicle 5 still is in full state; Slowly inserting needle when vesicle 5 becomes flat suddenly, representes that syringe needle 2 successfully thrusts epidural space.
Wherein seal vesicle 5 and should select for use elasticity or flexible material to process, waterproof, airtight.
Said push rod 3 front ends can be set up sealing plug 9, as the part of push rod 3.
Maximal friction Fmax between push rod 3 and body 1 inwall is that push rod 3 refers to the maximal friction between main and body 1 inwall as a whole.
When sealing plug 9 was arranged, Fmax was the maximal friction between sealing plug 9 and body 1 inwall and the set of the maximal friction between other positions of push rod and body 1 inwall.
Embodiment two: as shown in Figure 2, said side pipe 4 is arranged on body mouth 6 sidewalls, and communicates with body 1 inner chamber, and side pipe 4 is provided with a sealing vesicle 5, and remainder and structure are as shown in the embodiment one.
Embodiment three: as shown in Figure 3, said side pipe 4 is arranged on syringe needle 2 root sidewalls, and communicates with syringe needle 2 inner chambers, and side pipe 4 is provided with a sealing vesicle 5, and remainder and structure are as shown in the embodiment one.
Embodiment four: like Fig. 4, shown in 5; This epidural puncture comprises body 1, syringe needle 2 and push rod 3 with high-drag push rod vesicle indication syringe; Have through hole 7 on the said body 1 leading portion sidewall, and the flexible mantle 8 of envelope on this through hole, push away before the push rod 3; Elasticity mantle 8 bubblings, and following relation is arranged: (P
1-P
0) * S≤Fmax, wherein P
1Be elasticity mantle 8 bubbling inner fluid pressure; P
0Be atmospheric pressure; S is the projected areas of push rod 3 sealing surfaces on the push rod cross section; Fmax is the maximum static friction force between push rod 3 and body 1 inwall.
During use, at first spur push rod 3, medicine or liquid are sucked body 1; Syringe needle 2 thrusts subcutaneous; Grip body 1 inserting needle, arrive near the compact tissue of spinal column; Thumb promotes push rod 3 then, and elasticity mantle 8 is heaved to suitable size (can make the healthcare givers obviously discover gets final product); Thumb leaves push rod 3 tail ends, grips body 1 slow inserting needle once more, and the stiction between push rod 3 and body 1 inwall keeps push rod 3 to stand fast at this moment, still is in full state in elasticity mantle 8 bubblings; Slowly inserting needle when elasticity mantle 8 bubblings become flat suddenly, representes that syringe needle 2 successfully thrusts epidural space.
Embodiment five: like Fig. 6, shown in 7, said through hole 7 is arranged on body mouth 6 sidewalls, and communicates with body 1 inner chamber, and through hole 7 is provided with an elasticity mantle 8, and remainder and structure are as shown in the embodiment four.
Embodiment six: like Fig. 8, shown in 9, said through hole 7 is arranged on the syringe needle 2 root sidewalls, and communicates with syringe needle 2 inner chambers, and through hole 7 is provided with an elasticity mantle 8, and remainder and structure are as shown in the embodiment four.
Above embodiment is the illustrative novel to this reality just, any being embodied in: push away, seal the vesicle expansion before the push rod, unclamp push rod, the same appliances that push rod stands fast all falls into the protection domain of this utility model patent.
Claims (8)
1. a cavum epidural puncture is with high-drag push rod vesicle indication syringe; Comprise body, syringe needle and push rod; It is characterized in that: on the said body or on the body mouth or the syringe needle root be provided with an arm, this arm is provided with a sealing vesicle, pushes away before the push rod; The sealing vesicle expands, and following relation is arranged: (P
1-P
0) * S≤Fmax, wherein P
1Be sealing vesicle inner fluid pressure; P
0Be atmospheric pressure; S is the projected area of push rod seal face on the push rod cross section; Fmax is the maximum static friction force between push rod and the body inwall.
2. cavum epidural puncture as claimed in claim 1 is with high-drag push rod vesicle indication syringe, and it is characterized in that: said arm is arranged on the body leading portion sidewall, and communicates with device cavity.
3. cavum epidural puncture as claimed in claim 1 is with high-drag push rod vesicle indication syringe, and it is characterized in that: said arm is arranged on the body mouth sidewall, and communicates with device cavity.
4. cavum epidural puncture as claimed in claim 1 is with high-drag push rod vesicle indication syringe, and it is characterized in that: said arm is arranged on the syringe needle root sidewall, and communicates with the syringe needle inner chamber.
5. a cavum epidural puncture is with high-drag push rod vesicle indication syringe; Comprise body, syringe needle and push rod; It is characterized in that: have through hole on the said body or on the body mouth or on the syringe needle root, and the flexible mantle of envelope on this through hole, push away before the push rod; Elasticity mantle bubbling, and following relation is arranged: (P
1-P
0) * S≤Fmax, wherein P
1Be elasticity mantle bubbling inner fluid pressure; P
0Be atmospheric pressure; S is the projected area of push rod seal face on the push rod cross section; Fmax is the maximum static friction force between push rod and the body inwall.
6. cavum epidural puncture as claimed in claim 5 is with high-drag push rod vesicle indication syringe, and it is characterized in that: said through hole is arranged on the body leading portion sidewall.
7. cavum epidural puncture as claimed in claim 5 is with high-drag push rod vesicle indication syringe, and it is characterized in that: said through hole is arranged on the body mouth sidewall.
8. cavum epidural puncture as claimed in claim 5 is with high-drag push rod vesicle indication syringe, and it is characterized in that: said through hole is arranged on the syringe needle root sidewall, and communicates with the syringe needle inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200898482U CN202505895U (en) | 2012-03-12 | 2012-03-12 | High-resistance push rod vesicle indicating injector for epidural space puncturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200898482U CN202505895U (en) | 2012-03-12 | 2012-03-12 | High-resistance push rod vesicle indicating injector for epidural space puncturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202505895U true CN202505895U (en) | 2012-10-31 |
Family
ID=47058407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200898482U Expired - Lifetime CN202505895U (en) | 2012-03-12 | 2012-03-12 | High-resistance push rod vesicle indicating injector for epidural space puncturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202505895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9144436B2 (en) | 2013-06-24 | 2015-09-29 | Thomas A. Senatore | Apparatus for hanging drop detection of epidural space penetration |
| CN112336423A (en) * | 2020-10-20 | 2021-02-09 | 成都尚古医疗器械有限公司 | Puncture auxiliary assembly and puncture device |
-
2012
- 2012-03-12 CN CN2012200898482U patent/CN202505895U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9144436B2 (en) | 2013-06-24 | 2015-09-29 | Thomas A. Senatore | Apparatus for hanging drop detection of epidural space penetration |
| CN112336423A (en) * | 2020-10-20 | 2021-02-09 | 成都尚古医疗器械有限公司 | Puncture auxiliary assembly and puncture device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202505895U (en) | High-resistance push rod vesicle indicating injector for epidural space puncturing | |
| CN205019529U (en) | Show pressure syringe | |
| CN102614563B (en) | Cavum epidural puncture high-drag push rod vesicle indication injector | |
| CN204932476U (en) | Steel ball spring formula shows pressure injection emitter | |
| CN205007378U (en) | Pressure syringe is shown to silica gel friction formula | |
| CN205007377U (en) | Pressure syringe is shown to tooth dentition formula | |
| CN105079896A (en) | Follow-up pericardial fluid suction device | |
| CN204683726U (en) | A kind of obstetrics membrane breaking device | |
| CN203001134U (en) | Novel anaesthetic puncture bag | |
| CN209595862U (en) | A kind of Pain Management anesthetic care device | |
| CN204133478U (en) | Clinical laboratory's blood taking tube | |
| CN209404913U (en) | A kind of balloon catheter for expanding vertebra | |
| CN208892602U (en) | A kind of disposable tip blood sampling apparatus | |
| CN202982743U (en) | Thoracocentesis device | |
| CN207970127U (en) | A kind of arthrocentesiS instrument | |
| CN201379630Y (en) | Pen type puncture needle of artificial rupture of membranes of amniotic sac | |
| CN206403783U (en) | Safe artery hemostix | |
| CN220876870U (en) | Pollution-avoiding puncture device | |
| CN205924120U (en) | Pneumoperitoneum needle | |
| CN204909591U (en) | Disposable peritoneoscope is with puncture ware | |
| CN2726539Y (en) | Disposable pericardium puncture needle | |
| CN203724185U (en) | Epidural space safety puncture needle | |
| CN209645566U (en) | Anti-stabbing infusion apparatus | |
| CN217286274U (en) | Anti-return hydrops extractor for oncology department | |
| CN202096211U (en) | Convenient and quick blood taking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINXIANG TUOREN MEDICAL APPLIANCES CO., LTD. Free format text: FORMER OWNER: YAN QING Effective date: 20130216 Free format text: FORMER OWNER: ZHU DONGYA Effective date: 20130216 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 266000 QINGDAO, SHANDONG PROVINCE TO: 453400 XINXIANG, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130216 Address after: 453400, Henan County, Xinxiang City, Changyuan Province Meng Gang reed Garden Industrial Zone Patentee after: Xinxiang Tuoren Medical Appliances Co., Ltd. Address before: Shinan District 266000 Shandong city of Qingdao province Xuzhou Road 32, building 3, unit 2, 802 Patentee before: Yan Qing Patentee before: Zhu Dongya |
|
| C56 | Change in the name or address of the patentee |
Owner name: HENAN TUOREN MEDICAL APPLIANCES GROUP CO., LTD. Free format text: FORMER NAME: XINXIANG TUOREN MEDICAL APPLIANCES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 453400, Henan County, Xinxiang City, Changyuan Province Meng Gang reed Garden Industrial Zone Patentee after: HENAN TUOREN MEDICAL DEVICE GROUP CO., LTD. Address before: 453400, Henan County, Xinxiang City, Changyuan Province Meng Gang reed Garden Industrial Zone Patentee before: Xinxiang Tuoren Medical Appliances Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |